Re: BZ stops displaying vectors when hooked up to 9010A

I have found some boards don't work with the pod connected...if you read
the operators manual for the pods it suggests that if the UUT doesn't work
then there is a design issue with the UUT...so the question is, does one
believe Atari or Fluke? I'm betting on Fluke myself.

John :-#)#

At 01:10 PM 03/07/2003 -0700, David Shoemaker wrote:

>Ok, I thought the board was just dead when I tried RUN UUT. But then I
>noticed that the start button was still flashing.
>
>So the game is running but I am getting nothing out on the display. I
>verified that I am getting DVXx & DVYx at the dacs.
>
>Possibilities as I see them:
>
>!CENTER confused resulting in no beam movement
>!HST or !LST confused resulting in a window that is sized at center of screen.
>!WNDWBLK confused resulting in completely clipped vectors.
>
>!ZBLANK or ZOUT bad. But I don't think this is the case because I don't
>have the Z input hooked to my scope and the beam seems to be stuck dead center.
>
>
>So I would like to scope probe the DAC at its output before it has been
>messed with by centering or windowing circuits. Of course I get nothing
>on the scope when I try this.
>
>Ideas?
>
>I am SURE I have used the RUN UUT mode on BZ before. Can't figure out why
>it doesn't want to work now.
>
>Oh and the above is with a known good board.
>
>David

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Received on Thu Jul 3 17:14:56 2003